(!!!) (BEST VALUE PAIR) 5881 Tungsol tests like new 1957 and 1963 with broken center guide pins – see photo (72.5ma and 68.2ma) Title: 5881 Tungsol

1 Pair) 5881 Tungsol test like new 1957 and 1963 with broken center guide pins – see photo

1 tube) 72.5mA and Gm=5600

1 tube) 68.2mA and Gm=5550

Tested on Amplitrex

Good used Ma range 55-70ma

Good used Gm = 4500-6000

recommended for:

– Pro Dawg (copy of 5E5A Circuit)
– Naylor SD60
– Fender Bassman RI 1956, 1959
– Fender Pro-Amp 1962
– Victoria Regal 2007
– Melody SP3 amp
– Heath W4AM mono amps
– Audio Note SORO linestage
– Mesa Boogie Mark 4
– Supratek
– CARR Rambler
– Line6 Spider Valve 112 (2007) Reinhold Bogner Amplification UK
– Clark Tyger 2011
– Clark Piedmont 2003